Interpreting Timing Diagram of Encoder

[curious_mind]

I was going through SICK absolute encoder **broken link removed**. Referring to page No 7, timing diagram depicts that for 30 bits resolution, 33 clock pulses needs to be sent to retrieve position information. Is that right?

 

[KlausST]

Hi,

Always use the datasheet directly from the manufacturer, they are most up to date.

It depicts 34 clock cycles.
* 1 start (before the data: H-L-H cycle)
* 30 data
* 3 error

Klaus

 

[curious_mind]

I agree, but what would happen if we transmit less no of pulses say 30 for data

 

[ZASto]

You do not transmit data. Encoder is transmitting data on every rising clock edge. YOU should provide all needed number of pulses to clock out data from encoder.

 

[FvM]

YOU should provide all needed number of pulses to clock out data from encoder.

Not necessary. SSI frame can be aborted after any number of clock pulses. After expiration of idle period, a new frame can be started. See https://en.wikipedia.org/wiki/Synchronous_Serial_Interface

 

[ZASto]

Anyway, no complete data